이사야 28:13의 Musar

Now, as to the first principle of worship, which deals with accustoming oneself to prayer and its ways, know that anyone who wishes to serve his God with a complete service and with a perfect heart can attain this only with much diligence, after much time, with much practice, and without impatience. Know that the servant of God may find the habit of his worship tedious at first and delightful later. So is it with every deed that a man does. At first, he finds it wearisome, but the difficulty of the exertion vanishes towards the end. Therefore, everyone who wishes to assume the yoke of worship to God must think about all its pleasures and must always keep them in mind. Let him accustom himself at first to do the easy deed and not make it burdensome for himself, but as he goes on let him add, just as it is said (Isaiah 28:13), “And so the word of the Lord is unto them, precept by precept, precept by precept, line by line, line by line, here a little, there a little.” If he sees that he has added more than he can bear, let him lighten the burden a little in order that he may not grow impatient with it suddenly. After he has made it easier for himself and some time has elapsed, he can return to his prior state.